700858990921 has 4 divisors (see below), whose sum is σ = 705500441344. Its totient is φ = 696217540500.

The previous prime is 700858990859. The next prime is 700858990999. The reversal of 700858990921 is 129099858007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 129099858007 = 1031 ⋅125218097.

It is a cyclic number.

It is not a de Polignac number, because 700858990921 - 2²¹ = 700856893769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (700852990921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2320724985 + ... + 2320725286.

It is an arithmetic number, because the mean of its divisors is an integer number (176375110336).

Almost surely, 2^700858990921 is an apocalyptic number.

It is an amenable number.

700858990921 is a deficient number, since it is larger than the sum of its proper divisors (4641450423).

700858990921 is a wasteful number, since it uses less digits than its factorization.

700858990921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4641450422.

The product of its (nonzero) digits is 3265920, while the sum is 58.

The spelling of 700858990921 in words is "seven hundred billion, eight hundred fifty-eight million, nine hundred ninety thousand, nine hundred twenty-one".